{"id":1700,"date":"2026-04-11T11:51:17","date_gmt":"2026-04-11T11:51:17","guid":{"rendered":"https:\/\/www.viz-note.com\/vi\/why-erd-blocks-microservices-migration\/"},"modified":"2026-04-11T11:51:17","modified_gmt":"2026-04-11T11:51:17","slug":"why-erd-blocks-microservices-migration","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/vi\/why-erd-blocks-microservices-migration\/","title":{"rendered":"T\u1ea1i sao C\u00e1c S\u01a1 \u0110\u1ed3 M\u1ed1i Quan H\u1ec7 Th\u1ef1c Th\u1ec3 C\u1ee7a B\u1ea1n \u0110ang K\u00ecm K\u1eb9p Vi\u1ec7c Chuy\u1ec3n \u0110\u1ed5i Sang Microservices (V\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa)"},"content":{"rendered":"

Hi\u1ec7n \u0111\u1ea1i h\u00f3a m\u1ed9t h\u1ec7 th\u1ed1ng c\u0169 th\u00e0nh ki\u1ebfn tr\u00fac microservices l\u00e0 m\u1ed9t h\u00e0nh tr\u00ecnh \u0111\u1ea7y th\u00e1ch th\u1ee9c v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u00e0 t\u1ed5 ch\u1ee9c. Trong khi nhi\u1ec1u nh\u00f3m t\u1eadp trung m\u1ea1nh v\u00e0o vi\u1ec7c t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n v\u00e0 \u0111\u00f3ng g\u00f3i b\u1eb1ng container, m\u1ed9t r\u00e0o c\u1ea3n l\u1edbn th\u01b0\u1eddng n\u1eb1m \u1edf l\u1edbp d\u1eef li\u1ec7u. C\u1ee5 th\u1ec3, m\u00f4 h\u00ecnh s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 (ERD) truy\u1ec1n th\u1ed1ng c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t r\u00e0o c\u1ea3n nghi\u00eam tr\u1ecdng khi chuy\u1ec3n \u0111\u1ed5i sang c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n. \ud83d\udcc9<\/p>\n

Khi b\u1ea1n thi\u1ebft k\u1ebf m\u1ed9t \u1ee9ng d\u1ee5ng \u0111\u01a1n th\u1ec3, m\u00f4 h\u00ecnh d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c t\u1eadp trung h\u00f3a. M\u1ed9t s\u01a1 \u0111\u1ed3 ERD \u0111\u1ea1i di\u1ec7n cho ngu\u1ed3n th\u00f4ng tin duy nh\u1ea5t, v\u1edbi c\u00e1c b\u1ea3ng chu\u1ea9n h\u00f3a \u0111\u01b0\u1ee3c li\u00ean k\u1ebft b\u1edfi c\u00e1c kh\u00f3a ngo\u1ea1i. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi m\u1ed9t phi\u00ean b\u1ea3n c\u01a1 s\u1edf d\u1eef li\u1ec7u duy nh\u1ea5t. Tuy nhi\u00ean, microservices \u0111\u00f2i h\u1ecfi t\u00ednh \u0111\u1ed9c l\u1eadp. Khi b\u1ea1n \u00e9p bu\u1ed9c c\u1ea5u tr\u00fac ERD \u0111\u01a1n th\u1ec3 l\u00ean ki\u1ebfn tr\u00fac ph\u00e2n t\u00e1n, b\u1ea1n t\u1ea1o ra s\u1ef1 g\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd, l\u00e0m m\u1ea5t \u0111i l\u1ee3i \u00edch c\u1ee7a vi\u1ec7c t\u00e1ch r\u1eddi h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh. \ud83d\udea7<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 l\u00fd do t\u1ea1i sao t\u01b0 duy ERD truy\u1ec1n th\u1ed1ng c\u1ea3n tr\u1edf vi\u1ec7c \u00e1p d\u1ee5ng microservices v\u00e0 cung c\u1ea5p m\u1ed9t l\u1ed9 tr\u00ecnh th\u1ef1c t\u1ebf \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i chi\u1ebfn l\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n. Ch\u00fang ta s\u1ebd \u0111\u1ec1 c\u1eadp \u0111\u1ebfn qu\u1ea3n l\u00fd d\u1eef li\u1ec7u ph\u00e2n t\u00e1n, c\u00e1c m\u00f4 h\u00ecnh nh\u1ea5t qu\u00e1n, v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt tr\u1ef1c quan h\u00f3a ph\u00f9 h\u1ee3p v\u1edbi nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf theo mi\u1ec1n. \ud83d\uddfa\ufe0f<\/p>\n

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\"Hand-drawn<\/figure>\n<\/div>\n

Hi\u1ec3u r\u00f5 B\u1eaby ERD trong C\u00e1c H\u1ec7 Th\u1ed1ng Ph\u00e2n T\u00e1n \ud83e\udde9<\/h2>\n

S\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n tr\u1ef1c quan v\u1ec1 c\u1ea5u tr\u00fac logic c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u. N\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1c th\u1ef1c th\u1ec3 (b\u1ea3ng), thu\u1ed9c t\u00ednh (c\u1ed9t) v\u00e0 m\u1ed1i quan h\u1ec7 (kh\u00f3a ngo\u1ea1i). Trong m\u00f4i tr\u01b0\u1eddng \u0111\u01a1n th\u1ec3, s\u1ef1 t\u1eadp trung n\u00e0y l\u00e0 m\u1ed9t \u0111i\u1ec3m m\u1ea1nh. N\u00f3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u th\u00f4ng qua c\u00e1c giao d\u1ecbch ACID v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c truy v\u1ea5n tr\u00ean to\u00e0n b\u1ed9 \u1ee9ng d\u1ee5ng.<\/p>\n

Tuy nhi\u00ean, ki\u1ebfn tr\u00fac microservices \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean nguy\u00ean t\u1eafc \u0111\u1ed9c l\u1eadp d\u1ecbch v\u1ee5<\/strong>. M\u1ed7i d\u1ecbch v\u1ee5 n\u00ean s\u1edf h\u1eefu d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh v\u00e0 ch\u1ec9 ti\u1ebft l\u1ed9 n\u00f3 th\u00f4ng qua m\u1ed9t API. Khi b\u1ea1n duy tr\u00ec m\u1ed9t s\u01a1 \u0111\u1ed3 ERD chung bao tr\u00f9m nhi\u1ec1u d\u1ecbch v\u1ee5, b\u1ea1n vi ph\u1ea1m ranh gi\u1edbi s\u1edf h\u1eefu. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 sau:<\/p>\n

    \n
  • Ph\u1ee5 thu\u1ed9c v\u00e0o l\u01b0\u1ee3c \u0111\u1ed3 to\u00e0n c\u1ee5c:<\/strong> N\u1ebfu D\u1ecbch v\u1ee5 A c\u1ea7n k\u1ebft h\u1ee3p d\u1eef li\u1ec7u t\u1eeb D\u1ecbch v\u1ee5 B tr\u1ef1c ti\u1ebfp \u1edf c\u1ea5p \u0111\u1ed9 c\u01a1 s\u1edf d\u1eef li\u1ec7u, ch\u00fang kh\u00f4ng c\u00f2n \u0111\u1ed9c l\u1eadp n\u1eefa. M\u1ed9t thay \u0111\u1ed5i trong l\u01b0\u1ee3c \u0111\u1ed3 c\u1ee7a D\u1ecbch v\u1ee5 B s\u1ebd l\u00e0m h\u1ecfng D\u1ecbch v\u1ee5 A.<\/li>\n
  • Ranh gi\u1edbi giao d\u1ecbch:<\/strong> C\u00e1c giao d\u1ecbch ACID xuy\u00ean su\u1ed1t nhi\u1ec1u c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n k\u00e9m v\u1ec1 hi\u1ec7u n\u0103ng. C\u00e1c giao d\u1ecbch ph\u00e2n t\u00e1n th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn xung \u0111\u1ed9t kh\u00f3a v\u00e0 t\u0103ng \u0111\u1ed9 tr\u1ec5.<\/li>\n
  • G\u1eafn k\u1ebft tri\u1ec3n khai:<\/strong> N\u1ebfu m\u00f4 h\u00ecnh d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c chia s\u1ebb, b\u1ea1n kh\u00f4ng th\u1ec3 tri\u1ec3n khai c\u00e1c d\u1ecbch v\u1ee5 m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp. B\u1ea1n ph\u1ea3i ph\u1ed1i h\u1ee3p thay \u0111\u1ed5i l\u01b0\u1ee3c \u0111\u1ed3 gi\u1eefa c\u00e1c nh\u00f3m, l\u00e0m ch\u1eadm chu k\u1ef3 ph\u00e1t h\u00e0nh.<\/li>\n
  • S\u1ef1 nh\u1ea7m l\u1eabn v\u1ec1 b\u1ed1i c\u1ea3nh gi\u1edbi h\u1ea1n:<\/strong> C\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau c\u00f3 th\u1ec3 hi\u1ec3u th\u1ef1c th\u1ec3 gi\u1ed1ng nhau theo c\u00e1ch kh\u00e1c nhau. M\u1ed9t s\u01a1 \u0111\u1ed3 ERD bu\u1ed9c ph\u1ea3i c\u00f3 m\u1ed9t \u0111\u1ecbnh ngh\u0129a duy nh\u1ea5t, b\u1ecf qua nh\u1eefng s\u1eafc th\u00e1i \u0111\u1eb7c th\u00f9 theo mi\u1ec1n.<\/li>\n<\/ul>\n

    V\u1ea5n \u0111\u1ec1 G\u1eafn K\u1ebft: Kh\u00f3a Ngo\u1ea1i v\u00e0 K\u1ebft N\u1ed1i \ud83d\udd17<\/h2>\n

    M\u1ed9t trong nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i l\u00e0 c\u1ed1 g\u1eafng gi\u1eef nguy\u00ean l\u01b0\u1ee3c \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u hi\u1ec7n t\u1ea1i trong khi t\u00e1ch m\u00e3 ngu\u1ed3n \u1ee9ng d\u1ee5ng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u1ed9t m\u1eabu ch\u1ed1ng l\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u chung<\/em>. Trong t\u00ecnh hu\u1ed1ng n\u00e0y, nhi\u1ec1u d\u1ecbch v\u1ee5 k\u1ebft n\u1ed1i \u0111\u1ebfn c\u00f9ng m\u1ed9t phi\u00ean b\u1ea3n c\u01a1 s\u1edf d\u1eef li\u1ec7u, d\u1ef1a v\u00e0o c\u00e1c kh\u00f3a ngo\u1ea1i \u0111\u1ec3 duy tr\u00ec m\u1ed1i quan h\u1ec7.<\/p>\n

    M\u1eb7c d\u00f9 \u0111i\u1ec1u n\u00e0y tr\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ed9t c\u1ea5u tr\u00fac ERD h\u1ee3p l\u1ec7, nh\u01b0ng th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3 \u1ea9n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y th\u1ea5t b\u1ea1i trong b\u1ed1i c\u1ea3nh microservices:<\/p>\n

      \n
    1. \u0110\u1ed9 tr\u1ec5 m\u1ea1ng:<\/strong> Ngay c\u1ea3 khi c\u01a1 s\u1edf d\u1eef li\u1ec7u n\u1eb1m trong m\u1ea1ng c\u1ee5c b\u1ed9, c\u00e1c truy v\u1ea5n xuy\u00ean d\u1ecbch v\u1ee5 v\u1eabn t\u1ea1o ra c\u00e1c b\u01b0\u1edbc nh\u1ea3y m\u1ea1ng l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t so v\u1edbi c\u00e1c truy v\u1ea5n c\u1ee5c b\u1ed9.<\/li>\n
    2. \u0110i\u1ec3m l\u1ed7i duy nh\u1ea5t:<\/strong> N\u1ebfu c\u01a1 s\u1edf d\u1eef li\u1ec7u ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, m\u1ecdi d\u1ecbch v\u1ee5 \u0111\u1ec1u ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. Microservices h\u01b0\u1edbng \u0111\u1ebfn kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i th\u00f4ng qua s\u1ef1 c\u00f4 l\u1eadp.<\/li>\n
    3. R\u1ee7i ro b\u1ea3o m\u1eadt:<\/strong> M\u1ed9t d\u1ecbch v\u1ee5 m\u00e0 kh\u00f4ng n\u00ean truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o d\u1eef li\u1ec7u kh\u00e1c v\u1eabn c\u00f3 th\u1ec3 truy c\u1eadp n\u00f3 th\u00f4ng qua chu\u1ed7i k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u. APIs cung c\u1ea5p giao di\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t; truy c\u1eadp c\u01a1 s\u1edf d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp th\u00ec kh\u00f4ng.<\/li>\n
    4. B\u1ecb m\u1eafc k\u1eb9t c\u00f4ng ngh\u1ec7:<\/strong> T\u1ea5t c\u1ea3 c\u00e1c d\u1ecbch v\u1ee5 ph\u1ea3i s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t c\u00f4ng ngh\u1ec7 c\u01a1 s\u1edf d\u1eef li\u1ec7u. Microservices cho ph\u00e9p l\u01b0u tr\u1eef \u0111a ng\u00f4n ng\u1eef, n\u01a1i c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau s\u1eed d\u1ee5ng kho d\u1eef li\u1ec7u ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a ch\u00fang.<\/li>\n<\/ol>\n

      \u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, b\u1ea1n ph\u1ea3i t\u1eeb b\u1ecf vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ph\u00e9p n\u1ed1i SQL qua c\u00e1c ranh gi\u1edbi d\u1ecbch v\u1ee5. Thay v\u00e0o \u0111\u00f3, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng vi\u1ec7c k\u1ebft h\u1ee3p API ho\u1eb7c \u0111\u1ed3ng b\u1ed9 h\u00f3a d\u1eef li\u1ec7u d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n. \ud83d\udd04<\/p>\n

      C\u01a1 s\u1edf d\u1eef li\u1ec7u theo t\u1eebng d\u1ecbch v\u1ee5: Quy t\u1eafc V\u00e0ng \ud83c\udfe6<\/h2>\n

      M\u00f4 h\u00ecnh n\u1ec1n t\u1ea3ng cho ki\u1ebfn tr\u00fac d\u1eef li\u1ec7u microservices l\u00e0C\u01a1 s\u1edf d\u1eef li\u1ec7u theo t\u1eebng d\u1ecbch v\u1ee5<\/strong>. M\u1ed7i d\u1ecbch v\u1ee5 s\u1edf h\u1eefu l\u01b0\u1ee3c \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u ri\u00eang c\u1ee7a m\u00ecnh. Kh\u00f4ng d\u1ecbch v\u1ee5 n\u00e0o kh\u00e1c \u0111\u01b0\u1ee3c ph\u00e9p truy c\u1eadp c\u01a1 s\u1edf d\u1eef li\u1ec7u n\u00e0y tr\u1ef1c ti\u1ebfp. Giao ti\u1ebfp di\u1ec5n ra nghi\u00eam ng\u1eb7t th\u00f4ng qua API c\u00f4ng khai c\u1ee7a d\u1ecbch v\u1ee5.<\/p>\n

      S\u1ef1 thay \u0111\u1ed5i n\u00e0y \u0111\u00f2i h\u1ecfi m\u1ed9t thay \u0111\u1ed5i c\u0103n b\u1ea3n trong c\u00e1ch b\u1ea1n h\u00ecnh dung d\u1eef li\u1ec7u. B\u1ea1n kh\u00f4ng c\u00f2n c\u00f3 th\u1ec3 v\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 ERD kh\u1ed5ng l\u1ed3 cho to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. Thay v\u00e0o \u0111\u00f3, b\u1ea1n t\u1ea1o ra nhi\u1ec1u s\u01a1 \u0111\u1ed3 ERD nh\u1ecf h\u01a1n, m\u1ed7i s\u01a1 \u0111\u1ed3 d\u00e0nh cho m\u1ed9t d\u1ecbch v\u1ee5. \ud83d\udcc4<\/p>\n\n\n\n\n\n\n\n\n
      Kh\u00eda c\u1ea1nh<\/th>\nS\u01a1 \u0111\u1ed3 ERD \u0110\u01a1n th\u1ec3<\/th>\nM\u00f4 h\u00ecnh Microservices<\/th>\n<\/tr>\n<\/thead>\n
      Ph\u1ea1m vi l\u01b0\u1ee3c \u0111\u1ed3<\/td>\nTo\u00e0n c\u1ee5c \/ \u0110\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t<\/td>\n\u0110\u1ecba ph\u01b0\u01a1ng \/ \u0110\u1eb7c th\u00f9 d\u1ecbch v\u1ee5<\/td>\n<\/tr>\n
      M\u1ed1i quan h\u1ec7<\/td>\nKh\u00f3a ngo\u1ea1i<\/td>\nG\u1ecdi API \/ S\u1ef1 ki\u1ec7n<\/td>\n<\/tr>\n
      T\u00ednh nh\u1ea5t qu\u00e1n<\/td>\nM\u1ea1nh (ACID)<\/td>\nCu\u1ed1i c\u00f9ng (BASE)<\/td>\n<\/tr>\n
      Tri\u1ec3n khai<\/td>\nLi\u00ean k\u1ebft ch\u1eb7t ch\u1ebd<\/td>\n\u0110\u1ed9c l\u1eadp<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Qu\u1ea3n l\u00fd t\u00ednh nh\u1ea5t qu\u00e1n m\u00e0 kh\u00f4ng c\u1ea7n giao d\u1ecbch chung \ud83e\udd1d<\/h2>\n

      Khi b\u1ea1n t\u00e1ch bi\u1ec7t c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u, b\u1ea1n m\u1ea5t kh\u1ea3 n\u0103ng th\u1ef1c hi\u1ec7n m\u1ed9t giao d\u1ecbch duy nh\u1ea5t c\u1eadp nh\u1eadt \u0111\u1ed3ng th\u1eddi c\u1ea3 D\u1ecbch v\u1ee5 A v\u00e0 D\u1ecbch v\u1ee5 B. Trong m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng giao d\u1ecbch c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 chuy\u1ec3n ti\u1ec1n t\u1eeb T\u00e0i kho\u1ea3n A sang T\u00e0i kho\u1ea3n B. Trong microservices, c\u00e1c t\u00e0i kho\u1ea3n n\u00e0y c\u00f3 th\u1ec3 thu\u1ed9c v\u1ec1 c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau.<\/p>\n

      V\u00ec b\u1ea1n kh\u00f4ng th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n t\u1ee9c th\u00ec trong c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n, b\u1ea1n ph\u1ea3i \u00e1p d\u1ee5ngT\u00ednh nh\u1ea5t qu\u00e1n cu\u1ed1i c\u00f9ng<\/strong>. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 h\u1ec7 th\u1ed1ng s\u1ebd \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i nh\u1ea5t qu\u00e1n theo th\u1eddi gian, nh\u01b0ng kh\u00f4ng nh\u1ea5t thi\u1ebft ngay l\u1eadp t\u1ee9c khi ng\u01b0\u1eddi d\u00f9ng nh\u1ea5p v\u00e0o n\u00fat.<\/p>\n

      Tri\u1ec3n khai c\u00e1c Saga<\/h3>\n

      \u0110\u1ec3 x\u1eed l\u00fd c\u00e1c quy tr\u00ecnh ph\u1ee9c t\u1ea1p tr\u1ea3i d\u00e0i qua nhi\u1ec1u d\u1ecbch v\u1ee5, h\u00e3y s\u1eed d\u1ee5ngm\u00f4 h\u00ecnh Saga<\/strong>. M\u1ed9t saga l\u00e0 m\u1ed9t chu\u1ed7i c\u00e1c giao d\u1ecbch c\u1ee5c b\u1ed9, trong \u0111\u00f3 m\u1ed7i giao d\u1ecbch c\u1eadp nh\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u trong m\u1ed9t d\u1ecbch v\u1ee5 duy nh\u1ea5t. N\u1ebfu m\u1ed9t b\u01b0\u1edbc th\u1ea5t b\u1ea1i, saga s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c giao d\u1ecbch b\u00f9 tr\u1eeb \u0111\u1ec3 ho\u00e0n nguy\u00ean c\u00e1c thay \u0111\u1ed5i do c\u00e1c b\u01b0\u1edbc tr\u01b0\u1edbc \u0111\u00f3 th\u1ef1c hi\u1ec7n.<\/p>\n

        \n
      • K\u1ecbch b\u1ea3n:<\/strong>C\u00e1c d\u1ecbch v\u1ee5 ph\u00e1t ra s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t c\u00e1c h\u00e0nh \u0111\u1ed9ng \u1edf c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c. Kh\u00f4ng c\u00f3 b\u1ed9 \u0111i\u1ec1u ph\u1ed1i trung t\u00e2m n\u00e0o.<\/li>\n
      • \u0110i\u1ec1u ph\u1ed1i:<\/strong>M\u1ed9t d\u1ecbch v\u1ee5 \u0111i\u1ec1u ph\u1ed1i trung t\u00e2m qu\u1ea3n l\u00fd lu\u1ed3ng c\u00f4ng vi\u1ec7c v\u00e0 ch\u1ec9 \u0111\u1ea1o c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c th\u1ef1c hi\u1ec7n \u0111i\u1ec1u g\u00ec.<\/li>\n<\/ul>\n

        C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn c\u00e1c kh\u00f3a chia s\u1ebb hay giao d\u1ecbch ph\u00e2n t\u00e1n. N\u00f3 l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong tri\u1ec3n khai nh\u01b0ng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec s\u1ee9c kh\u1ecfe h\u1ec7 th\u1ed1ng. \ud83d\udee1\ufe0f<\/p>\n

        Tr\u1ef1c quan h\u00f3a D\u1eef li\u1ec7u m\u00e0 Kh\u00f4ng c\u1ea7n ERD: B\u1ea3n \u0111\u1ed3 B\u1ed1i c\u1ea3nh \ud83d\uddfa\ufe0f<\/h2>\n

        N\u1ebfu b\u1ea1n t\u1eeb b\u1ecf ERD truy\u1ec1n th\u1ed1ng, b\u1ea1n s\u1ebd d\u00f9ng g\u00ec \u0111\u1ec3 tr\u1ef1c quan h\u00f3a ki\u1ebfn tr\u00fac d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh? C\u00e2u tr\u1ea3 l\u1eddi n\u1eb1m \u1edfB\u1ea3n \u0111\u1ed3 B\u1ed1i c\u1ea3nh Thi\u1ebft k\u1ebf H\u01b0\u1edbng mi\u1ec1n (DDD)<\/strong>. Trong khi ERD t\u1eadp trung v\u00e0o c\u00e1c b\u1ea3ng v\u00e0 c\u1ed9t, b\u1ea3n \u0111\u1ed3 b\u1ed1i c\u1ea3nh l\u1ea1i t\u1eadp trung v\u00e0o c\u00e1c b\u1ed1i c\u1ea3nh \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7.<\/p>\n

        Thay v\u00ec v\u1ebd c\u00e1c \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa c\u00e1c b\u1ea3ng, b\u1ea1n v\u1ebd c\u00e1c \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5. B\u1ea1n x\u00e1c \u0111\u1ecbnh c\u00e1ch d\u1eef li\u1ec7u ch\u1ea3y gi\u1eefa ch\u00fang:<\/p>\n

          \n
        • Kh\u00e1ch h\u00e0ng-Nh\u00e0 cung c\u1ea5p:<\/strong>M\u1ed9t d\u1ecbch v\u1ee5 cung c\u1ea5p d\u1eef li\u1ec7u cho d\u1ecbch v\u1ee5 kh\u00e1c. B\u00ean cung c\u1ea5p x\u00e1c \u0111\u1ecbnh h\u1ee3p \u0111\u1ed3ng.<\/li>\n
        • Tu\u00e2n th\u1ee7:<\/strong>D\u1ecbch v\u1ee5 ti\u00eau th\u1ee5 ph\u1ea3i th\u00edch nghi v\u1edbi m\u00f4 h\u00ecnh c\u1ee7a b\u00ean cung c\u1ea5p.<\/li>\n
        • D\u1ecbch v\u1ee5 Ch\u1ee7 M\u1edf:<\/strong>M\u1ed9t d\u1ecbch v\u1ee5 c\u00f4ng khai d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh th\u00f4ng qua m\u1ed9t giao th\u1ee9c m\u1edf.<\/li>\n
        • \u0110\u01b0\u1eddng ri\u00eang bi\u1ec7t:<\/strong>C\u1ea3 hai d\u1ecbch v\u1ee5 \u0111\u1ec1u ph\u00e1t tri\u1ec3n m\u00f4 h\u00ecnh ri\u00eang c\u1ee7a ch\u00fang m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp.<\/li>\n<\/ul>\n

          S\u1ef1 thay \u0111\u1ed5i n\u00e0y trong tr\u1ef1c quan h\u00f3a gi\u00fap c\u00e1c \u0111\u1ed9i hi\u1ec3u r\u00f5 h\u01a1nt\u1ea1i sao<\/em>d\u1eef li\u1ec7u b\u1ecb sao ch\u00e9p. Trong m\u1ed9t h\u1ec7 th\u1ed1ng monolith, vi\u1ec7c sao ch\u00e9p l\u00e0 x\u1ea5u. Trong microservices, vi\u1ec7c sao ch\u00e9p th\u01b0\u1eddng l\u00e0 m\u1ed9t t\u00ednh n\u0103ng \u0111\u1ec3 t\u00e1ch bi\u1ec7t c\u00e1c d\u1ecbch v\u1ee5. V\u00ed d\u1ee5, d\u1ecbch v\u1ee5D\u1ecbch v\u1ee5 \u0110\u01a1n h\u00e0ng<\/em>c\u00f3 th\u1ec3 l\u01b0u tr\u1eef m\u1ed9t b\u1ea3n sao d\u1eef li\u1ec7u c\u1ee7aT\u00ean Kh\u00e1ch h\u00e0ng<\/em>\u0111\u1ec3 tr\u00e1nh g\u1ecdi m\u1ea1ng m\u1ed7i khi xem m\u1ed9t \u0111\u01a1n h\u00e0ng. S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i n\u00e0y l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t.<\/p>\n

          C\u00e1c B\u01b0\u1edbc Di chuy\u1ec3n: Chuy\u1ec3n t\u1eeb ERD sang D\u1eef li\u1ec7u Ph\u00e2n t\u00e1n \ud83d\ude80<\/h2>\n

          Chuy\u1ec3n \u0111\u1ed5i t\u1eeb ERD t\u1eadp trung sang m\u00f4 h\u00ecnh d\u1eef li\u1ec7u ph\u00e2n t\u00e1n kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n duy nh\u1ea5t. \u0110\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh theo t\u1eebng giai \u0111o\u1ea1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb \u0111\u1ec3 qu\u1ea3n l\u00fd qu\u00e1 tr\u00ecnh di chuy\u1ec3n.<\/p>\n

          B\u01b0\u1edbc 1: Ki\u1ec3m to\u00e1n c\u00e1c m\u1ed1i quan h\u1ec7 d\u1eef li\u1ec7u hi\u1ec7n c\u00f3<\/h3>\n

          Tr\u01b0\u1edbc khi chia t\u00e1ch b\u1ea5t k\u1ef3 th\u1ee9 g\u00ec, h\u00e3y ghi ch\u00e9p l\u1ea1i m\u1ecdi m\u1ed1i quan h\u1ec7 trong ERD hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n. X\u00e1c \u0111\u1ecbnh c\u00e1c b\u1ea3ng n\u00e0o l\u00e0 \u0111\u1ecdc nhi\u1ec1u, vi\u1ebft nhi\u1ec1u, v\u00e0 nh\u1eefng b\u1ea3ng n\u00e0o th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi nhau. Ph\u00e2n t\u00edch n\u00e0y gi\u00fap b\u1ea1n nh\u00f3m c\u00e1c th\u1ef1c th\u1ec3 v\u00e0o c\u00e1c ranh gi\u1edbi d\u1ecbch v\u1ee5 h\u1ee3p l\u00fd. \ud83d\udcca<\/p>\n

          B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh c\u00e1c B\u1ed1i c\u1ea3nh \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n<\/h3>\n

          Nh\u00f3m c\u00e1c th\u1ef1c th\u1ec3 d\u1ef1a tr\u00ean c\u00e1c mi\u1ec1n kinh doanh thay v\u00ec c\u00e1c ph\u1ee5 thu\u1ed9c k\u1ef9 thu\u1eadt. V\u00ed d\u1ee5, m\u1ed9t S\u1ed5 tay s\u1ea3n ph\u1ea9m<\/em> l\u00e0 kh\u00e1c bi\u1ec7t v\u1edbi m\u1ed9t Qu\u1ea3n l\u00fd kho<\/em> h\u1ec7 th\u1ed1ng, ngay c\u1ea3 khi c\u1ea3 hai \u0111\u1ec1u s\u1eed d\u1ee5ng tr\u01b0\u1eddng ProductID<\/code> tr\u01b0\u1eddng. \u0110\u1ea3m b\u1ea3o c\u00e1c ranh gi\u1edbi ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u tr\u00fac nh\u00f3m (Lu\u1eadt Conway).<\/p>\n

          B\u01b0\u1edbc 3: Tri\u1ec3n khai C\u01a1 s\u1edf d\u1eef li\u1ec7u theo t\u1eebng D\u1ecbch v\u1ee5<\/h3>\n

          T\u1ea1o m\u1ed9t phi\u00ean b\u1ea3n c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u1edbi cho t\u1eebng d\u1ecbch v\u1ee5. Chuy\u1ec3n d\u1eef li\u1ec7u li\u00ean quan t\u1eeb c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u01a1n th\u1ec3. B\u1ea1n kh\u00f4ng c\u1ea7n di chuy\u1ec3n m\u1ecdi th\u1ee9 ngay l\u1eadp t\u1ee9c. B\u1eaft \u0111\u1ea7u b\u1eb1ng d\u1eef li\u1ec7u c\u1ed1t l\u00f5i c\u1ea7n thi\u1ebft \u0111\u1ec3 d\u1ecbch v\u1ee5 ho\u1ea1t \u0111\u1ed9ng. \ud83c\udfd7\ufe0f<\/p>\n

          B\u01b0\u1edbc 4: Thay th\u1ebf c\u00e1c ph\u00e9p JOIN b\u1eb1ng l\u1eddi g\u1ecdi API<\/h3>\n

          T\u00e1i c\u1ea5u tr\u00fac c\u00e1c truy v\u1ea5n c\u1ee7a b\u1ea1n. Thay v\u00ec JOIN Orders, Customers<\/code>, m\u00e3 c\u1ee7a b\u1ea1n n\u00ean g\u1ecdi \u0111\u1ebfn API Kh\u00e1ch h\u00e0ng<\/em> \u0111\u1ec3 l\u1ea5y chi ti\u1ebft. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra \u0111\u1ed9 tr\u1ec5, v\u00ec v\u1eady h\u00e3y c\u00e2n nh\u1eafc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c b\u1ed9 nh\u1edb \u0111\u1ec7m ho\u1eb7c lo\u1ea1i b\u1ecf chu\u1ea9n h\u00f3a \u1edf nh\u1eefng n\u01a1i ph\u00f9 h\u1ee3p.<\/p>\n

          B\u01b0\u1edbc 5: Gi\u1edbi thi\u1ec7u lu\u1ed3ng s\u1ef1 ki\u1ec7n<\/h3>\n

          \u0110\u1ec3 c\u1eadp nh\u1eadt theo th\u1eddi gian th\u1ef1c, tri\u1ec3n khai m\u1ed9t bus s\u1ef1 ki\u1ec7n. Khi m\u1ed9t th\u1ef1c th\u1ec3 thay \u0111\u1ed5i trong m\u1ed9t d\u1ecbch v\u1ee5, h\u00e3y ph\u00e1t h\u00e0nh m\u1ed9t s\u1ef1 ki\u1ec7n. C\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd c\u00e1c s\u1ef1 ki\u1ec7n n\u00e0y \u0111\u1ec3 c\u1eadp nh\u1eadt b\u1ea3n sao c\u1ee5c b\u1ed9 c\u1ee7a d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n cu\u1ed1i c\u00f9ng m\u00e0 kh\u00f4ng c\u1ea7n li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp.<\/p>\n

          Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn trong qu\u00e1 tr\u00ecnh di chuy\u1ec3n \u26a0\ufe0f<\/h2>\n

          Ngay c\u1ea3 khi c\u00f3 k\u1ebf ho\u1ea1ch, c\u00e1c nh\u00f3m th\u01b0\u1eddng v\u1ea5p ng\u00e3 trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i. H\u00e3y c\u1ea3nh gi\u00e1c v\u1edbi nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn n\u00e0y.<\/p>\n

            \n
          • chia t\u00e1ch qu\u00e1 s\u1edbm:<\/strong> \u0110\u1eebng chia t\u00e1ch d\u1ecbch v\u1ee5 tr\u01b0\u1edbc khi b\u1ea1n hi\u1ec3u lu\u1ed3ng d\u1eef li\u1ec7u. Vi\u1ec7c chia t\u00e1ch qu\u00e1 s\u1edbm c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u1ee9c t\u1ea1p ph\u00e2n t\u00e1n tr\u01b0\u1edbc khi b\u1ea1n s\u1eb5n s\u00e0ng.<\/li>\n
          • B\u1ecf qua quy\u1ec1n s\u1edf h\u1eefu d\u1eef li\u1ec7u:<\/strong> N\u1ebfu nhi\u1ec1u nh\u00f3m tuy\u00ean b\u1ed1 s\u1edf h\u1eefu c\u00f9ng m\u1ed9t th\u1ef1c th\u1ec3 d\u1eef li\u1ec7u, xung \u0111\u1ed9t s\u1ebd x\u1ea3y ra. G\u00e1n quy\u1ec1n s\u1edf h\u1eefu r\u00f5 r\u00e0ng cho t\u1eebng d\u1ecbch v\u1ee5.<\/li>\n
          • Chu\u1ea9n h\u00f3a qu\u00e1 m\u1ee9c:<\/strong> Trong h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n, vi\u1ec7c lo\u1ea1i b\u1ecf chu\u1ea9n h\u00f3a th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng l\u1eddi g\u1ecdi API c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3n th\u1ecb m\u1ed9t trang.<\/li>\n
          • Ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ea1ng:<\/strong> Kh\u00f4ng bao gi\u1edd gi\u1ea3 \u0111\u1ecbnh m\u1ea1ng l\u00e0 ho\u00e0n h\u1ea3o. Tri\u1ec3n khai th\u1eddi gian ch\u1edd, th\u1eed l\u1ea1i v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch cho giao ti\u1ebfp gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5.<\/li>\n<\/ul>\n

            S\u1ef1 \u0111\u1ed3ng b\u1ed9 t\u1ed5 ch\u1ee9c \ud83e\udd1d<\/h2>\n

            Ki\u1ebfn tr\u00fac d\u1eef li\u1ec7u kh\u00f4ng ch\u1ec9 l\u00e0 k\u1ef9 thu\u1eadt; n\u00f3 l\u00e0 t\u1ed5 ch\u1ee9c. M\u00f4 h\u00ecnh d\u1eef li\u1ec7u ph\u00e2n t\u00e1n \u0111\u00f2i h\u1ecfi c\u00e1c nh\u00f3m ph\u1ea3i giao ti\u1ebfp theo c\u00e1ch kh\u00e1c bi\u1ec7t. Trong m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3, c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n n\u00f3i chuy\u1ec7n qua m\u1ed9t b\u1ea3ng tr\u1eafng chung (c\u01a1 s\u1edf d\u1eef li\u1ec7u). Trong microservices, h\u1ecd n\u00f3i chuy\u1ec7n qua h\u1ee3p \u0111\u1ed3ng API.<\/p>\n

            \u0110\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c nh\u00f3m c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c trao quy\u1ec1n thay \u0111\u1ed5i l\u01b0\u1ee3c \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a h\u1ecd m\u00e0 kh\u00f4ng c\u1ea7n tham kh\u1ea3o ban qu\u1ea3n l\u00fd trung t\u00e2m. T\u1ef1 ch\u1ee7 n\u00e0y l\u00e0 c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 duy tr\u00ec t\u1ed1c \u0111\u1ed9 tri\u1ec3n khai \u0111\u1ed9c l\u1eadp. N\u1ebfu b\u1ea1n gi\u1edbi thi\u1ec7u m\u1ed9t nh\u00f3m trung t\u00e2m ph\u00ea duy\u1ec7t m\u1ecdi thay \u0111\u1ed5i l\u01b0\u1ee3c \u0111\u1ed3, b\u1ea1n s\u1ebd t\u00e1i t\u1ea1o l\u1ea1i \u0111i\u1ec3m ngh\u1ebdn m\u00e0 b\u1ea1n \u0111\u00e3 c\u1ed1 g\u1eafng lo\u1ea1i b\u1ecf. \ud83d\udc65<\/p>\n

            Nh\u1eefng Xem x\u00e9t Cu\u1ed1i C\u00f9ng v\u1ec1 Chi\u1ebfn L\u01b0\u1ee3c D\u1eef Li\u1ec7u \ud83e\udded<\/h2>\n

            T\u1eeb b\u1ecf s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 truy\u1ec1n th\u1ed1ng l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 thay \u0111\u1ed5i t\u01b0 duy t\u1eebb\u1ea3o to\u00e0n t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u th\u00f4ng qua c\u00e1c r\u00e0ng bu\u1ed9c<\/em> sangb\u1ea3o to\u00e0n t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u th\u00f4ng qua logic \u1ee9ng d\u1ee5ng v\u00e0 s\u1ef1 ki\u1ec7n<\/em>. S\u01a1 \u0111\u1ed3 ERD l\u00e0 c\u00f4ng c\u1ee5 d\u00e0nh cho c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7, ch\u1ee9 kh\u00f4ng ph\u1ea3i b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf cho c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n.<\/p>\n

            B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng m\u1eabu C\u01a1 s\u1edf d\u1eef li\u1ec7u theo D\u1ecbch v\u1ee5, t\u1eadn d\u1ee5ng ki\u1ebfn tr\u00fac d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n v\u00e0 t\u1eadp trung v\u00e0o c\u00e1c b\u1ed1i c\u1ea3nh \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n, b\u1ea1n c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 g\u1eafn k\u1ebft l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh di d\u1eddi c\u1ee7a m\u00ecnh. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e1 h\u1ee7y m\u00f4 h\u00ecnh d\u1eef li\u1ec7u hi\u1ec7n t\u1ea1i, m\u00e0 l\u00e0 ph\u00e1t tri\u1ec3n n\u00f3 th\u00e0nh m\u1ed9t c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u0111\u1ed9c l\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1eefng.<\/p>\n

            H\u00e3y nh\u1edb r\u1eb1ng t\u00ednh nh\u1ea5t qu\u00e1n l\u00e0 m\u1ed9t d\u1ea3i ph\u1ed5. B\u1ea1n kh\u00f4ng c\u1ea7n t\u00ednh nh\u1ea5t qu\u00e1n m\u1ea1nh \u1edf m\u1ecdi n\u01a1i. X\u00e1c \u0111\u1ecbnh nh\u1eefng ph\u1ea7n n\u00e0o trong h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c nghi\u00eam ng\u1eb7t v\u00e0 ph\u1ea7n n\u00e0o c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn t\u00ednh nh\u1ea5t qu\u00e1n cu\u1ed1i c\u00f9ng. S\u1ef1 th\u1ef1c t\u1ebf n\u00e0y s\u1ebd gi\u00fap b\u1ea1n tr\u00e1nh \u0111\u01b0\u1ee3c vi\u1ec7c thi\u1ebft k\u1ebf gi\u1ea3i ph\u00e1p qu\u00e1 ph\u1ee9c t\u1ea1p.<\/p>\n

            B\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c ki\u1ec3m to\u00e1n c\u00e1c s\u01a1 \u0111\u1ed3 hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n. X\u00e1c \u0111\u1ecbnh c\u00e1c ph\u00e9p n\u1ed1i v\u01b0\u1ee3t qua ranh gi\u1edbi d\u1ecbch v\u1ee5. L\u00ean k\u1ebf ho\u1ea1ch di d\u1eddi nh\u1eefng th\u1ef1c th\u1ec3 c\u1ee5 th\u1ec3 \u0111\u00f3. Th\u1ef1c hi\u1ec7n t\u1eebng b\u01b0\u1edbc nh\u1ecf. X\u00e1c minh k\u1ebft qu\u1ea3. V\u00e0 lu\u00f4n \u0111\u1eb7t l\u0129nh v\u1ef1c kinh doanh l\u00e0m trung t\u00e2m trong thi\u1ebft k\u1ebf d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n. \ud83c\udfaf<\/p>\n

            Nh\u1eefng B\u00e0i H\u1ecdc Quan Tr\u1ecdng \ud83d\udcdd<\/h3>\n
              \n
            • Tr\u00e1nh s\u1eed d\u1ee5ng c\u01a1 s\u1edf d\u1eef li\u1ec7u chung gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5 \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 g\u1eafn k\u1ebft.<\/li>\n
            • S\u1eed d\u1ee5ng k\u1ebft h\u1ee3p API thay v\u00ec c\u00e1c ph\u00e9p n\u1ed1i SQL \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u xuy\u00ean d\u1ecbch v\u1ee5.<\/li>\n
            • Ch\u1ea5p nh\u1eadn t\u00ednh nh\u1ea5t qu\u00e1n cu\u1ed1i c\u00f9ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng s\u1eb5n s\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng s\u1ef1 ph\u00e2n m\u1ea3nh.<\/li>\n
            • Tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u b\u1eb1ng B\u1ea3n \u0111\u1ed3 B\u1ed1i c\u1ea3nh thay v\u00ec s\u01a1 \u0111\u1ed3 ERD to\u00e0n c\u1ee5c.<\/li>\n
            • Giao quy\u1ec1n s\u1edf h\u1eefu d\u1eef li\u1ec7u r\u00f5 r\u00e0ng cho t\u1eebng \u0111\u1ed9i ng\u0169 d\u1ecbch v\u1ee5.<\/li>\n
            • L\u00ean k\u1ebf ho\u1ea1ch cho vi\u1ec7c sao ch\u00e9p d\u1eef li\u1ec7u nh\u01b0 m\u1ed9t bi\u1ec7n ph\u00e1p t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t.<\/li>\n<\/ul>\n

              B\u1eb1ng c\u00e1ch tu\u00e2n theo nh\u1eefng nguy\u00ean t\u1eafc n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua nh\u1eefng ph\u1ee9c t\u1ea1p trong vi\u1ec7c di d\u1eddi d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng \u0111\u1ec3 s\u01a1 \u0111\u1ed3 ERD c\u1ee7a b\u1ea1n \u0111\u1ecbnh \u0111o\u1ea1t gi\u1edbi h\u1ea1n cho ki\u1ebfn tr\u00fac m\u1edbi c\u1ee7a m\u00ecnh. Con \u0111\u01b0\u1eddng ph\u00eda tr\u01b0\u1edbc l\u00e0 ph\u00e2n t\u00e1n, phi t\u1eadp trung v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 m\u1edf r\u1ed9ng quy m\u00f4. \ud83d\ude80<\/p>\n","protected":false},"excerpt":{"rendered":"

              Hi\u1ec7n \u0111\u1ea1i h\u00f3a m\u1ed9t h\u1ec7 th\u1ed1ng c\u0169 th\u00e0nh ki\u1ebfn tr\u00fac microservices l\u00e0 m\u1ed9t h\u00e0nh tr\u00ecnh \u0111\u1ea7y th\u00e1ch th\u1ee9c v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u00e0 t\u1ed5 ch\u1ee9c. Trong khi nhi\u1ec1u nh\u00f3m t\u1eadp…<\/p>\n","protected":false},"author":1,"featured_media":1701,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"T\u1ea1i sao S\u01a1 \u0111\u1ed3 ERD K\u00ecm h\u00e3m Vi\u1ec7c Di D\u1eddi sang Microservices v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa N\u00f3 \ud83d\udee0\ufe0f","_yoast_wpseo_metadesc":"Kh\u00e1m ph\u00e1 l\u00fd do t\u1ea1i sao s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 truy\u1ec1n th\u1ed1ng c\u1ea3n tr\u1edf vi\u1ec7c di d\u1eddi sang microservices. H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a d\u1eef li\u1ec7u ph\u00e2n t\u00e1n v\u00e0 t\u00e1ch r\u1eddi.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[68],"tags":[89,92],"class_list":["post-1700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-database-design","tag-academic","tag-erd"],"yoast_head":"\nT\u1ea1i sao S\u01a1 \u0111\u1ed3 ERD K\u00ecm h\u00e3m Vi\u1ec7c Di D\u1eddi sang Microservices v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa N\u00f3 \ud83d\udee0\ufe0f<\/title>\n<meta name=\"description\" content=\"Kh\u00e1m ph\u00e1 l\u00fd do t\u1ea1i sao s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 truy\u1ec1n th\u1ed1ng c\u1ea3n tr\u1edf vi\u1ec7c di d\u1eddi sang microservices. 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